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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 // Copied from strings/stringpiece.h with modifications | 4 // Copied from strings/stringpiece.h with modifications |
5 // | 5 // |
6 // A string-like object that points to a sized piece of memory. | 6 // A string-like object that points to a sized piece of memory. |
7 // | 7 // |
8 // Functions or methods may use const StringPiece& parameters to accept either | 8 // Functions or methods may use const StringPiece& parameters to accept either |
9 // a "const char*" or a "string" value that will be implicitly converted to | 9 // a "const char*" or a "string" value that will be implicitly converted to |
10 // a StringPiece. The implicit conversion means that it is often appropriate | 10 // a StringPiece. The implicit conversion means that it is often appropriate |
11 // to include this .h file in other files rather than forward-declaring | 11 // to include this .h file in other files rather than forward-declaring |
12 // StringPiece as would be appropriate for most other Google classes. | 12 // StringPiece as would be appropriate for most other Google classes. |
13 // | 13 // |
14 // Systematic usage of StringPiece is encouraged as it will reduce unnecessary | 14 // Systematic usage of StringPiece is encouraged as it will reduce unnecessary |
15 // conversions from "const char*" to "string" and back again. | 15 // conversions from "const char*" to "string" and back again. |
16 // | 16 // |
17 // StringPiece16 is similar to StringPiece but for base::string16 instead of | 17 // StringPiece16 is similar to StringPiece but for base::string16 instead of |
18 // std::string. We do not define as large of a subset of the STL functions | 18 // std::string. We do not define as large of a subset of the STL functions |
19 // from basic_string as in StringPiece, but this can be changed if these | 19 // from basic_string as in StringPiece, but this can be changed if these |
20 // functions (find, find_first_of, etc.) are found to be useful in this context. | 20 // functions (find, find_first_of, etc.) are found to be useful in this context. |
21 // | 21 // |
22 | 22 |
23 #ifndef BASE_STRING_PIECE_H_ | 23 #ifndef BASE_STRINGS_STRING_PIECE_H_ |
24 #define BASE_STRING_PIECE_H_ | 24 #define BASE_STRINGS_STRING_PIECE_H_ |
25 | 25 |
26 #include <stddef.h> | 26 #include <stddef.h> |
27 | 27 |
28 #include <iosfwd> | 28 #include <iosfwd> |
29 #include <string> | 29 #include <string> |
30 | 30 |
31 #include "base/base_export.h" | 31 #include "base/base_export.h" |
32 #include "base/basictypes.h" | 32 #include "base/basictypes.h" |
33 #include "base/hash_tables.h" | 33 #include "base/hash_tables.h" |
34 #include "base/string16.h" | 34 #include "base/string16.h" |
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441 HASH_STRING_PIECE(base::StringPiece, sp); | 441 HASH_STRING_PIECE(base::StringPiece, sp); |
442 } | 442 } |
443 inline size_t hash_value(const base::StringPiece16& sp16) { | 443 inline size_t hash_value(const base::StringPiece16& sp16) { |
444 HASH_STRING_PIECE(base::StringPiece16, sp16); | 444 HASH_STRING_PIECE(base::StringPiece16, sp16); |
445 } | 445 } |
446 | 446 |
447 #endif // COMPILER | 447 #endif // COMPILER |
448 | 448 |
449 } // namespace BASE_HASH_NAMESPACE | 449 } // namespace BASE_HASH_NAMESPACE |
450 | 450 |
451 #endif // BASE_STRING_PIECE_H_ | 451 #endif // BASE_STRINGS_STRING_PIECE_H_ |
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